Tuesday, 6 September 2011

Oral Health & Hygiene - Maths Problem #2

Congratulations to Rooms 7, 10, 14 and 8 who completed yesterdays problem.

Here's one for today. Let's see if we can get more classes posting todays answer.
Here are some ways you can answer this problem...  Make a table, use a calendar, subtraction.

Angeline brushed her teeth 2 times a day for one week. The next week, she forgot to brush after breakfast and only brushed one time a day. What is the difference in the number of times she brushed over the two weeks?

4 comments:

  1. Ms Tataurangi, Thats an easy one.

    We know that Angeline brushed her teeth 14 times the first week becasue 7+7=14.

    The second week she only brushed 7 times and 14-7=7.

    Room 10

    ReplyDelete
  2. Room4's answer is 7 because 14-7=7...
    How we got the anwser we used Subtraction

    ReplyDelete
  3. hi ms Tataurangi
    room3's anwser is 7 because 14-7=7:):)

    ReplyDelete
  4. Angeline brushed her teeth twice a day in the first week, that equals 14 (we counted in 2's for each day of the week).

    The second week, Angeline brushed her teeth once a day and we counted each day which gave us the answer 7.

    14-7= 7 (Some of us worked this out, because we knew that 7+7=14, so 14-7=7. Some of us counted backwards from 14 and some of us took away 4, which equals 10 and then another 3 which left us with the answer 7).


    Room 11.

    ReplyDelete